Arterial blood sample

Arterial blood sample

The pulse of an artery determines the location of an arterial stick. The primary reason for taking blood from an artery rather than a vein is to measure blood gases. Because arterial blood is oxygenated blood flowing directly from the heart, analysis of arterial blood can determine the oxygen content and chemistry of the blood before it is used by the tissues.

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  • Last Reviewed on 05/21/2012
  • Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital.

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This page was last updated: May 31, 2013

         
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